Flash exposure - Nikon 5700

Discussion in 'Nikon' started by Donald Gray, Nov 14, 2003.

  1. Donald Gray

    Donald Gray Guest

    I have several 'old' flash units which I am in the process of
    modifying to reduce the trigger voltage down to a safe (6V) level...

    I have made a hot shoe adaptor using only the centre pin and ground.

    I have not yet put the flash to the camera yet (waiting delivery of
    opto isolator chip)

    One question is burning....

    When using a correct speedflash on the hot shoe, how is the exposure
    controlled? Is it via the automatic aperture setting or is it by
    controlling the light output from the flash unit?

    In other words, once my trusted old (dumb) Flash unit (Braun F80 with
    2 slaves) is on the camera, will the camera (Intelligent) give the
    correct exposure or will I have to revert to the good old days of
    calculating the exposure and manually setting for every shot?
    --
    Donald Gray
    Putting ODCOMBE on the Global Village Map!
    www.odcombe.demon.co.uk
    You do not have to email me, but if you wish to...
    Please remove the SafetyPin from my email address first
    Thanks
     
    Donald Gray, Nov 14, 2003
    #1
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  2. Donald Gray

    Ed Ruf Guest

    Have your Read The Fabulous Manual? See p. 138, Using an External
    Speedlight:

    4 Set the external Speedlight zoom head to an angle wider than
    28 mm.
    If you are using a Speedlight with Auto Power Zoom, set the zoom head
    angle manually. The COOLPIX5700 does not support power zoom.
    5 Set the external Speedlight flash mode to TTL.
    At this setting, the amount of light produced by the external Speedlight
    is measured by the camera’s photocell, and the flash shooting range
    adjusted automatically to ensure optimal exposure. D-TTL flash control
    (available with the SB-80DX, SB-50DX and SB-28DX) is not supported.
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    http://members.cox.net/egruf
    See images taken with my CP-990 and 5700 at
    http://members.cox.net/egruf-digicam
     
    Ed Ruf, Nov 14, 2003
    #2
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  3. Donald Gray

    Donald Gray Guest

    []

    Yup! I have Read The Fantastic Manual.... but unfortunately I am
    suffering from:

    1) a culture shock - (just gone digital) - Packing up my 'screw in'
    delay action timer, putting away a couple of 2.25"sq rolleis, a couple
    of 35 mm cameras, Wondering what to do with my stock of 10 rolls of
    colour film.. Just fitted a 512Mb CF that will store umpteen thousand
    digipics (Well,maybe a few hundred - what the heck!))

    2) an information overload... Trying to get up to speed with the
    subject and trying to learn the differences between Function C.A and
    C.1, figuring out BSS, NR et al....

    I had tried (honestly) to find the info in the book but missed it. I
    do appreciate your reply. Thanks,

    I get confused easily - WT* is a D-TTL? (Digital through the lens?)
    --
    Donald Gray
    Putting ODCOMBE on the Global Village Map!
    www.odcombe.demon.co.uk
    You do not have to email me, but if you wish to...
    Please remove the SafetyPin from my email address first
    Thanks
     
    Donald Gray, Nov 15, 2003
    #3
  4. Donald Gray

    Ed Ruf Guest

    C.A is fully automatic, you have little control over anything. In C.1/2/3
    you have access to the setup menus controlling sharpening, contrast, BSS,
    exposure mode, focus mode etc. First thing you may consider is turning off
    continuous AF. Coming from the film side you're used to the half press to
    focus routine and continuous AF eats battery power. You also have the
    ability to choose between Program, Shutter, Aperture and Manual Modes.
    Program mode uses the same program as C.A, but still allows you to change
    the other settings you can't in C.A. In C.1/2/3 the settings are
    remembered, so this can be used a a quick method of configuring the camera
    with a particular group of settings. For instance I use C.1 for normal use,
    but have C.2 set for spot exposure, shutter priority and the teleconverter
    lens to use with the TC-15 add on teleconverter.
    To be honest I'm not sure. The 5700 is not really TTL, the light senor in
    the pop up flash is used. From info on the D-100:

    The D100’s built-in Speedlight makes it easy to
    explore the creative uses of flash photography.
    It offers flash coverage for lenses as wide as
    20mm and boasts a guide number of 17 (ISO 200,
    m). The built-in Speedlight performs with D-TTL
    flash operation, controlled by the five-segment
    TTL Multi Sensor and a new algorithm for more
    accurate flash control. D-TTL control enables
    you to take balanced fill-flash pictures even
    under complex lighting conditions. When you
    need more power or want to create more dramatic
    effects, you can use Nikon Speedlights
    like the SB-80DX and SB-50DX.
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    http://members.cox.net/egruf
    See images taken with my CP-990 and 5700 at
    http://members.cox.net/egruf-digicam
     
    Ed Ruf, Nov 15, 2003
    #4
  5. Donald Gray

    Donald Gray Guest


    Hopefully, battery power may not be a problem Ed. I have made up a
    stabilised external power supply using a rechargeable 12v belt pack.

    Although, I don't understand why, when the camera has auto focused,
    especially in macro shots, it will insist on going through a
    refocussing cycle on the half press.

    []
    Again, this is part of the culture shock - I am used to having a
    whopping great big huge electronic flash on a flash bar, half a yard
    away from the Rollei. Switched to half power and a handkerchief draped
    over the flash head for fill-in!
    After buying the 5700 *and* a 512Mb flash card, I cannot afford a
    Nikon speedlight just yet (The pension etc...) So, I have to try and
    make do with what I have. An ancient Braun F80 with a 70 volt trigger
    pc. I just received the components and am about to make up a small
    interface to be able to safely use the Braun with the 5700 - soldering
    iron is warming up as we speak....

    BTW Ed, You got to be a nice guy... Anyone with a soggy doggy Labrador
    must be. Sadly our Labrador died a couple of years ago - she too loved
    the water....

    Cheers matey

    --
    Donald Gray
    Putting ODCOMBE on the Global Village Map!
    www.odcombe.demon.co.uk
    You do not have to email me, but if you wish to...
    Please remove the SafetyPin from my email address first
    Thanks
     
    Donald Gray, Nov 15, 2003
    #5
  6. Donald Gray

    Ed Ruf Guest

    One of the few idiosyncracies you'll find. Another is the self timer always
    uses the AF, so you can't manually focus shots that you might want to use
    the timer for. I ran into this with last weekends lunar eclipse.
    Thanks. Actually, Klaus is... was a white German Shepherd Dog. I lost him
    this past July after an arduous battle with cancer. He did love sitting and
    laying in the water to cool off during our long walks around the Yorktown
    Battlefields.
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    http://members.cox.net/egruf
    See images taken with my CP-990 and 5700 at
    http://members.cox.net/egruf-digicam
     
    Ed Ruf, Nov 15, 2003
    #6
  7. Donald Gray

    JohnH Guest

    I too am a new 5700 owner. Luckily my wife bought the SB-50DX flash for my
    birthday. I used it for the first time today. Seemed to work pretty well, as
    viewed on the camera's viewer. Haven't downloaded the pics to the computer yet.
    Keep posting so I can keep learning right along with you.

    I did set up a user setting which allows for much less shutter lag by reducing
    the quality of the picture on the viewer. I mostly use the viewfinder and not
    the viewer on the back of the camera, so the loss of picture quality there
    didn't bother me much.

    John
    On the 'Poco Loco' out of Deale, MD
     
    JohnH, Nov 16, 2003
    #7
  8. Donald Gray

    Ed Ruf Guest

    Yes, that's the Shutter Release Speed option, set to Quick Review., on p126
    of the manual. Just remember you can't use this and the flash at the same
    time. Also, if you have Review On to show the shot taken on the LCD monitor
    and the next shot is taken while the image is being displayed the shot will
    use the focus and exposure settings from the previous image.
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    http://members.cox.net/egruf
    See images taken with my CP-990 and 5700 at
    http://members.cox.net/egruf-digicam
     
    Ed Ruf, Nov 16, 2003
    #8
  9. Donald Gray

    JohnH Guest

    I read your response (thanks, BTW), and thought you meant that the flash could
    not be used any time when the shutter release speed was set to Quick Response.
    The flash can be used, but not while the previous image is still displayed in
    the monitor. I'm thinking of shutting the review off just so it won't interfere
    with taking pictures.
    John
    On the 'Poco Loco' out of Deale, MD
     
    JohnH, Nov 16, 2003
    #9
  10. Donald Gray

    JohnH Guest

    PS. Moto Guzzi's rule! [Lifetime AMA #381841]
    John
    On the 'Poco Loco' out of Deale, MD
     
    JohnH, Nov 16, 2003
    #10
  11. Donald Gray

    Donald Gray Guest

    []
    G'day John
    Good to greet you - after spending out on the camera AND a 512 CF, I
    can't afford a new flash. You is a luck lad....


    --
    Donald Gray
    Putting ODCOMBE on the Global Village Map!
    www.odcombe.demon.co.uk
    You do not have to email me, but if you wish to...
    Please remove the SafetyPin from my email address first
    Thanks
     
    Donald Gray, Nov 16, 2003
    #11
  12. Donald Gray

    Donald Gray Guest

    Ooooops! He sure is like our dear old Lab.
    Loosing a trusted pet is the same grief as loosing a close member of
    the family. My commiserations.


    --
    Donald Gray
    Putting ODCOMBE on the Global Village Map!
    www.odcombe.demon.co.uk
    You do not have to email me, but if you wish to...
    Please remove the SafetyPin from my email address first
    Thanks
     
    Donald Gray, Nov 16, 2003
    #12
  13. Donald Gray

    Ed Ruf Guest

    Just to be sure, you're not looking at the shots with him and his best
    friend Dixie, a black lab, frolicking in the pond, near the bottom of
    http://members.cox.net/egruf-klaus/wormley/wormley.html
    Yes, he is dearly missed by myself, family and the neighbors. Many of the
    shots on my web pages were taken during our walks.
    ________________________________________________________
    Ed Ruf Lifetime AMA# 344007 ()
    http://members.cox.net/egruf
    See images taken with my CP-990 and 5700 at
    http://members.cox.net/egruf-digicam
     
    Ed Ruf, Nov 16, 2003
    #13
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